The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 2001
Filed:
Mar. 24, 1999
Applicant:
Inventors:
Jeroen Andreas Helmuth Söntgerath, Amsterdam, NL;
Achim Bürger, Höhr-Grenzhausen, DE;
Klaus Vieregge, Neuwied, DE;
Assignee:
Corus Aluminium Walzprodukte GmbH, Koblenz, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/520 ; F28F 2/108 ; C22C 2/100 ;
U.S. Cl.
CPC ...
B32B 1/520 ; F28F 2/108 ; C22C 2/100 ;
Abstract
An aluminium alloy for use as a core material in brazing sheet, comprising, in weight %: Mn 0.7-1.5, Cu 0.6-1.0, Fe not more than 0.4, Si less than 0.1, Mg 0.05-0.8, Ti 0.02-0.3, Cr 0.1-0.25, Zr 0.1-0.2, balance Al and unavoidable impurities, wherein 0.20<(Cr+Zr)≦0.4, the alloy being capable of obtaining in the post-brazing state 0.2% yield strength of at least 65 MPa and having a corrosion life of more than 11 days in a SWAAT test without perforations in accordance with ASTM G-85.